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Finding the Fourth Proportional to 235,612.94, 353,489.08 and 135,844.70

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Solution

The fourth proportional to 235,612.94, 353,489.08 and 135,844.70 is: 203,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,612.94 : 353,489.08 = 135,844.70 : x
  2. Step 2: Convert to fraction form
    235,612.94/353,489.08 = 135,844.70/x
  3. Step 3: Cross multiply
    235,612.94x = 353,489.08 × 135,844.70
  4. Step 4: Simplify right side
    235,612.94x = 48,019,618,025.88
  5. Step 5: Solve for x
    x = 48,019,618,025.88/235,612.94
  6. Step 6: Final answer
    x = 203,807.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.